We have seperated the tools that help you create your source files from the core LPagery WordPress plugin to make sure the plugin stays lightweight. So to use the LPagery AI features you will need to create another account (which is not the account you received your credentials for after purchasing LPagery Pro) here: https://app.lpagery.io/auth/sign-up
After creating an account you will be guided through the first steps and can then start creating your content sheet which will then be the base for the created source file. Follow this guide on how to create AI content with LPagery.